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Finding the Fourth Proportional to 13,124.37, 19,686.55 and 4,800.78

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Solution

The fourth proportional to 13,124.37, 19,686.55 and 4,800.78 is: 7,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.37 : 19,686.55 = 4,800.78 : x
  2. Step 2: Convert to fraction form
    13,124.37/19,686.55 = 4,800.78/x
  3. Step 3: Cross multiply
    13,124.37x = 19,686.55 × 4,800.78
  4. Step 4: Simplify right side
    13,124.37x = 94,510,795.51
  5. Step 5: Solve for x
    x = 94,510,795.51/13,124.37
  6. Step 6: Final answer
    x = 7,201.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.